Type-writing machine



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W P QUENTELL V TYPE WRITING MACHINE. No. 517,663. Patented Apr. 3, 1894.

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- I TYPE WRITING MACHINE. v No. 517,663. Patented Apr. 3, 1894.

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H MW m 1 THE NATIONAL LIYHOGRAFHING COMPANY.

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W. P. QUENTELL. TYPE WRITING MACHINE. 7

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W P QUENTELL v 'TYPE'WRITING' MACHINE.

No. 517,663. Patented Apr. 1894;

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(No Model.) I 6 Sheets-Sheet 5., W; P. QUENTEL L. TYPE WRITING MACHINE.

No. 517,663. Patented Apr. 3, 1894.

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' W. P. QUENTELL. TYPE WRITING MAGHINE. Patented Apr. 3, 189,4.

I .UNITED STATES PATENT OFFioE.

' ILLIA P QUENTELL, or KANsAsoI'r MISSOURI.

-TYP E WRl T lNG MACHINE.

' J v srncrmcnrrou forming part of Letters Patent No. 517,663, dated A rl 3, 1894;

9 App1icationfiled August 21,1893. sesnua isaem. GTomodel.) l

I To all whom it may concern; v

Be itknown that LWILLIAM P. QUENTELL, of Kansas City, Missouri,jhaveinventedcertain new and useful Improvements in Type- Writing Machines,of which the following is a specification. I

This invention relates to a typewriting ma chine of the class wherein isemployed a rotating type wheel having type characters upon its lowerside and which by its rotation is brought to the printing position-atwhich pointa printing lever or hammer is depressed impinging the typeupon the paper.

The objectof the invention is to simplify the construction and improvethe operation of machines of this class, and my invention is designed toafiord a typewriting machine which can be produced at small cost andwhich iscapable of performing rapid and accurate printing. 7

In the general construction of the machine there is embodied in asuitable base, a vertical shaft which is stepped into the base andadapted to be rotated in its seat and to be held therein by a cap whichis secured upon a slotted disk through which the shaft loosely passes,said disk being supported from and connected with. the base by suitablestand ards. A series of key levers is pivotally mounted upon thisslotted disk and is adapted to impinge upon an annulus carried by alever pivotally mounted upon a standard, also rising from the base, saidlever being controlled so as to normally sustain the annulus in itsraised position by a suitable spring. The standards which carrytheslotted disk also support an ink pad which is in the form of a flat ringof sheet metal. The type wheel comprises a disk of rubber which isvulcanized upon a metal plate of smaller diameter, and the centers ofthese disks or plates are perforated and have hubs with a central borethrough which the central shaft passes and to which they are secured soas to effect the rotation of the type wheel with the central shaft.Aprinting lever of the bell crank type is pivotally mounted on asuitable'support rising from the carriage support and has one memberthereof arranged in the path of a projection carried by the annulus,which is depressed by the key lever, and when this an- "distinguishingcharacteristics n'ulu's is depressed the, printing arm is likewiseforced down, strikingthe type wheel from above and forcing thetypecharacter on its opposite surface through a perforation in the inkpad support andupon the paper.

' ment of the paper carriage as the arm is operated, The paper iscarried" upon asuitable' roller which is mounted in a sliding carriage,and the latter is pivotally connected with the base so that the'carriagemay be thrown out and the writing brought into view.

A selective deviceis employed which consists of a lever 'or arm carriedby the central shaft, and the latter is rotated whenever one of the typelevers are depressed bymeans of a rack and pinion which is movedbyaspring.

The depression of the type lever effects the tensioning of the springwhich moves the rack and causes the rotation of the-central shaftcarrying the arm with it until the latter comes in contact with thelever which is depressed and the position of the type upon the typewheel is such that whenever the wheel is arrested by the engagement ofthe selective arm with the actuated key lever the letter correspondingto that of the key lever will be brought into position over theperforation in the ink pad.

Suitable provisions are made for printing upper and lower casevcharacters, and for the several characters ordinarily employed intypewriting, and these in conjunction with a spacing lever andlinelever, constitute, in connection with the parts above described, the

of my invention. I

The invention provides a typewriter which can be cheaply constructed andwhich has a key for each character, and therefore embodies the principaladvantages of the more expensive machines, the smaller ones having been,prior to my invention, provided with a single printing lever and theiraction necessarily has been slow.

.A" feature of the present construction is the arrangement of the typelevers in such manner that thosewhich are most used are arranged on theside of the machine next to the operator. The type levers are also sopivoted that rapidity may be secured in conjunction with ease ofoperation, the leverage being suflicient to enable the operation of themachine with small efiort as with the most approved forms of modernexpensive typewriters.

Referring to the drawings, Figure 1 is a front elevation with some ofthe key levers removed. Fig. 2 is a side elevation, partly in section, asecondary position of some of the operating parts being shown by dottedlines. Fig. 3 is a broken plan view. Fig. 1 isa side elevation showing amodification of the means for revolving the type wheel. Fig. 4 is adetail view showing the manner of securing the cords with the sheaves onthe upright shaft. Fig.5 is a detail plan view of the paper carriage anda part of its operating mechanism, showing means whereby it can beshifted in order to change from lower to upper case characters, and asecondary position of the roller is indicated bydotted lines. Figs. 6 to11 inclusive are detail views, in which Fig. 6 is an inverted plan viewof the type wheel. Fig. 7 is a view of the ink supporting pad. Fig. 8 isa plan view of the slotted disk. Fig. 9 shows a disk having springfingers for returning the type levers to their normal position. Fig. 10is across section through the paper roller and its supporting base andshowing a sheet of paper and means for rotating the roller and lockingit in position for the line; and Fig. 11 is a broken detail showing theannulus and printing lever depressed and a type character forced throughthe opening in the ink pad ring and impinging the paper on the roller.

In the drawings, 15 represents the base in which is stepped the uprightshaft 16 which at its top has a cap 17 which is connected with a slotteddisk 18, said disk being apertured at its center for the passage of theshaft 16. Said disk is supported by the standards 10 which are rigidlysecured with the base. A spring 20 having its upper end confined beneatha cap 17 and its lower end engaged with the shaft 16 maintains thelatter in its seat. The disk 18 has a series of vertical slots 21 inwhich are pivoted the ends of the key levers 22. The arrangement of saidlevers is particularly shown in Fig. 3 of the drawings. Each of themcarries the usual button or disk 23 on which a type character will beindicated, those which are most used being ar ranged at the front of themachine or next to the operator. The type levers 22 are normallysustained in a horizontal position by means of spring fingers 22, formedby slitting radially the annular plate 22 shown in Figs. 2 and 9. Thesefingers are curved in the direction of their length, as shown in thesectional view of Fig. 2, and the plate 22 is secured on top of the disk18 by means of screws turned into the slotted disk 18. The springfingers bear at their inner ends upon the inner ends of the type levers22 beyond their pivots, as clearly shown in Fig. 2.

Mounted upon the shaft 16 is the type wheel 24 which comprises a disk ofrubber vulcanized upon a plate of smaller diameter and provided with ahub 25 which is secured with the shaft 16. The cross sectional View ofFig. 6 shows the construction of this type wheel and within it is fittedthe ink pad 26, a face view of which is shown in Fig. 7. This ink pad issupported by thestandards 19 and is stationary. It hasa perforation 27therein through which the type characters are forced by the fiexure ofthe disk upon which said characters are formed.

28 represents an annulus through whose opening the shaft 16 passes, saidannulus being mounted upon an arm 29 pivotedupon a post 30 andcontrolled by the spring 31. Normally said annulus is raised so that itis in contactwith the lower sides or edges of the type levers 22. Whenone of said'key levers is depressed, as for example,in Fig. 2, theannulus is forced down as shown by the dotted lines, and the projection32 thereon engages the printing lever33,causiug the latter to strike thetype wheel and forcing the character upon said type wheel through theaperture in theink pad support and upon the paper, as clearly shown inFig. 11.

The selection of the type is performed in the manner following: Theshaft 16 carries an arm 34, the normal position of which is at restagainst a stop 35, shown in Fig. 2. The annulus 28 carries a link 36which is pivotally connected with and adapted to operate a bell cranklever 37 pivoted upon a post 37' upon the machine base. The lower end ofthe bell crank lever 37 normallyengages the up-tnrned end 38 of a rackbar 39, as shown by the dotted lines in Fig. 1. Said rack bar has itsrack teeth enmeshed with a spur gear 40 on the lower end of shaft 16,and a spring 41 normally tends to pull the rack bar toward the shaft,but this tendency of the spring is overcome by the normal action of thebell crank 37. Now when the type lever is depressed and the annulusforced down, the bell crank will be rocked on its pivot, the lower endbeing swung away from the upturned end of the rack bar and thecontrolling spring of the latter will cause it to move end-wise, thuseffecting a rotation of the shaft through the spur gear. The typecharacters on the type-wheel bear a certain relation to those on the keylever, and when one of the key levers is depressed, thus effecting therotation of the shaft, the extent of the rotation will be determined bythe movement of the arm 34 which will permit the rotation of the shaft16 and the type wheel carried thereby, until said arm 34 comes incontact with the raisedend of the key lever. When this occurs the motionof the shaft and of the type wheel will be arrested, and at this 1 pointthe character upon the type wheel corresponding to that 'of' thedepressed key legver will be in position immediately. over the aperturein the ink pad plate and be'neathth'e 5 printing arm. The annulus isfree to descend until itengages the printing arm,w hereupon 7 normalpositions. The printing lever 33'has '15 a memberf42 which extendsforward beneath the lever33 withits end engaginga T-shaped rocker 43pivoted to the standard 44 on which the lever 33 is also pivoted. jThisT-shaped rocker has at its lower end a dog 45 normally V 25depressed by a spring 46, and the end of the dog is adapted to engagethe rack 47 which f is connected with the paper carriage 48. A

spring 49 has one end hired to a post 50 on the base,'and its oppositeend secured with 25.the rocker. When the printing lever is depressed, asabove described, the lever 42 will swing the rocker on its pivot'thusmoving the dog the length of one tooth of the rack and the spring '46will swing the dog into engage- 0 ment with anew tooth, while the spring49 will move the carriage end-wise a space equal to the'distance betweenthe teeth.

51 is a spacing bar which is pivoted on the standard 44, at 52, and theforward end of 5 this lever carries apin 53 which rides in'a slot 54 inthe standard 44 beneath one member of the rocker. The spacing lever isnormally upheld by a spring 55,*and when said lever is depressed therocker may swing on 0 its pivot, moving the dog into engagement with anew tooth and tensioning the pull back spring 49, thus enabling thespacing without printing.

56 represents the roller of the paper car- 45 riage, and 57 the paperpassed around said roll, as shown in Figs. 10 and 11. This roller hasthe hand wheel 58 at its end by which it may be turned to bring thepaper into position for a new line of printing, and a dog 59 5o engagingthe teeth of a ratchet wheel 60 looks the roller againstmovement aftereach partial rotation. A spring 61 presses the dog 59 into engagementwith the ratchet wheel,

and a curved'spring shield 62 clamps the pa- 5 5 per upon the roller.The paper carriage is pivoted at one end upon the vertical pivot 63 andit may be swung on said pivot in the position shown by the dotted linesin Fig. 5 to bring the line of printing into view.

Means are also employed for shifting the paper carriage laterally inorder to permit the printing with different fonts of type. The upper andlowercase letters are arranged,

. respectively, in concentric series upon the 65 lower face of the typewheel, as shown in Fig.

6, and the lateral movement of the paper roller toward the axis of thetype wheel will .bring the paper in position to -receive'an impressionfrom the inner circle of 'type.'-

Mechanism by which this is efiected is shown in Figs. 2, 4 and 5. Thepaper carriage has a base 64 which is capable of sliding later- .allyupon the bed-65, this bed in :turn being pivoted to the base of themachine by the pivot 63.. The carriage is normally held in.

position forprinting with the lower case by meansof a curved spring 66(Fig. 5), whose middle isfastened and whose ends engage studs 67 of thebed 65, the base plate 4 being slotted to permit the movement of thecarriage upon said studs.

' 68 represents a rock shaft havinga thumb piece 69 and with its middleengagedwith the-carriage to a stud 70. The rocking of this shaft effectsthe lateral shifting of the carriage to permit the use of the innercircle of type on the type wheel, and the spring 66 will return thecarriage to its normal position when downward pressure on the thumbpiece 69 is released.

In Fig. 4 I have shown a modified construction of the means for turningthe central shaft and type wheel. In this instance the bell crank 37 hasa cord 37-at one end thereof which passes around a small sheave 37* onthe central shaft 16, and a spring 49 has a cord 49 secured to its endand turned around a sheave 49 on shaft 16. The cords 37 and 49 areturned about their sheaves in opposite directions, as shown in thedetail of Fig. 4, and the swinging of the bell crank 37 will turn theshaft in one direction thus winding up the cord 49 and increasing thetension of spring 49. When the type lever ,is released and the partsreturned to their normal position, the spring 49 will, by reason of itstension and through the cord 49, rotate the shaft and return the typewheel to normal position.

I claim 1. In a typewriting machine, the combination with a rotatableshaft carrying a type wheel thereon, a series of pivoted key leversradially arranged with reference to saidshaft, a pivoted annulus adaptedto be depressed by the depression of any one of the series of levers, aprinting mechanism actuated by said annulus when depressed, means forrotating the central shaft and the type wheel carried thereby, an armcarried by the shaft and adapted to arrest its movement by engagementwith the key lever depressed, and means for returning the shaft to itsnormal position, substantially as described.

2. In ,a typewriter machine, the combination with a rotatable shaftcarrying a type wheel thereon, of a series of pivoted key leversradially arranged with reference to the roo the latter whereby to rotatethe central shaft and its type wheel to the printing position, and aconnection between the annulus and the rack bar whereby the latter ismoved to return the type wheel to its normal position, substantially asdescribed.

3. Ina typewriter, the combination with a vertically arranged rotatableshaft carrying a type wheel thereon, a stationary support through whichthe shaft loosely passes, a stop arm carried by the shaft, a series ofkey levers pivoted near their inner ends upon the stationary support,springs for maintaining said levers in an elevated position, a pivotedannulus adapted to be engaged by any one of the series of levers, aprinting mechanism actuated by the annulus, means for rotating thecentral shaft and its type wheel to the printing position, said meansbeing positively actuated by the movement of the annulus, and a springconnected with the latter and adapted to return the shaft to its normalpo-

